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Shift in maternal proportion between within-population and hybrid endosperm for 15 candidate PEGs and 12 candidate MEGs conserved between S. peruvianum (LA1616) and S. chilense (LA4329). For within-population crosses, PEGs are indicated as red dots and MEGs as blue triangles, and their respective maternal proportion in hybrid endosperm is shown with open symbols. The average shift for PEGs (red arrows along both axes) is less pronounced for S. chilense in the maternal role.
